mirror of
https://github.com/django/django.git
synced 2024-12-27 03:25:58 +00:00
50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
from django.db import transaction
|
|
from django.test import TestCase
|
|
|
|
from .models import FloatModel
|
|
|
|
|
|
class TestFloatField(TestCase):
|
|
def test_float_validates_object(self):
|
|
instance = FloatModel(size=2.5)
|
|
# Try setting float field to unsaved object
|
|
instance.size = instance
|
|
with transaction.atomic():
|
|
with self.assertRaises(TypeError):
|
|
instance.save()
|
|
# Set value to valid and save
|
|
instance.size = 2.5
|
|
instance.save()
|
|
self.assertTrue(instance.id)
|
|
# Set field to object on saved instance
|
|
instance.size = instance
|
|
msg = (
|
|
"Tried to update field model_fields.FloatModel.size with a model "
|
|
"instance, %r. Use a value compatible with FloatField."
|
|
) % instance
|
|
with transaction.atomic():
|
|
with self.assertRaisesMessage(TypeError, msg):
|
|
instance.save()
|
|
# Try setting field to object on retrieved object
|
|
obj = FloatModel.objects.get(pk=instance.id)
|
|
obj.size = obj
|
|
with self.assertRaisesMessage(TypeError, msg):
|
|
obj.save()
|
|
|
|
def test_invalid_value(self):
|
|
tests = [
|
|
(TypeError, ()),
|
|
(TypeError, []),
|
|
(TypeError, {}),
|
|
(TypeError, set()),
|
|
(TypeError, object()),
|
|
(TypeError, complex()),
|
|
(ValueError, "non-numeric string"),
|
|
(ValueError, b"non-numeric byte-string"),
|
|
]
|
|
for exception, value in tests:
|
|
with self.subTest(value):
|
|
msg = "Field 'size' expected a number but got %r." % (value,)
|
|
with self.assertRaisesMessage(exception, msg):
|
|
FloatModel.objects.create(size=value)
|